As B-ROMs (either character or personal) are gradually built using past data, they are developmental phenomena. Based on the knowledge received from experiences, they are updated from time to time. As they refine over time, the requirement of updating them for refinement decreases as the person matures, unless in the cases where interactions with people or environment are highly significant, very different or when they are in an environment where they interact with a lot of new people.

Based on differences in the way experiences are processed and/or biological reasons, every person has a different capacity to form personal B-ROM and character B-ROMs.